Hello guys, Could anyone suggest me a audio and video editor that is reliable, lightweight, free, and easy to use and support the MP4 format? I wish I could edit audio (insert / delete audio intervals) and remove audio from video and replace with a new audio. I thank you for the tips that come!

mp4 is generally a 'finished format' A bit like 'do all your editing and save in xcf format' but then export the finished off as a jpeg. Very easy in mp4 to lose video/audio sync.

I would say that you need to seperate the video and the audio (demux)Edit the audio without changing the duration. Join the video and the audio back together. (mux)

Simple. For this nothing is simple.Avidemux will split and join video and audio tracks and copy the video without reencoding if possible.Audacity will edit the audio and superimpose clips on to the main track.

Hello guys, Could anyone suggest me a audio and video editor that is reliable, lightweight, free, and easy to use and support the MP4 format? I wish I could edit audio (insert / delete audio intervals) and remove audio from video and replace with a new audio. I thank you for the tips that come!

This cross-platform combo Avidemux video editor and Audacity audio editor are a good lightweight start. What is your OS?

rich2005 is right Videohelp is an excellent resource. Another is Doom9, mainly about DVD conversion but contains good information on audio/video formats and useful programs.

Nidhogg wrote:

VirtualDub & Audacity.I have used VirtualDub with ffdshow and plugins for years. Without a single crash.Avidemux is unstable with MP4. I can guarantee it will crash.

I use Avidemux regularly without issue. MPEG files from other sources are normally the problem it's garbage in, even more garbage out. You have to check for errors before you edit. Video players will automatically resync a bad quality MPEG, a video editor doesn't.